BODY ASTM A 105BALL AISI 304 ASTM A 351 Gr CF8STEM AISI 304SEAT & SEALS PTFEMFG STD BS 5351 BS 5159INSP & TEST STD BS 6755PORT FULL BORE REDUCE BOREENDS SCREWED TO BSP BSPT NPTSOCKET WELD ENDS TO ASME B 16.11HYD-TEST PRESSURE BODY : 211 Kgcm SEAT :70.38 Kgcm FOR 15MM TO 25MM , 51 Kgcm FOR 32MM TO 50MMSIZE RANGE 15 MM TO 50 MM